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GRAY PROCESSES CORP

Overview
  • Total Patents
    73
About

GRAY PROCESSES CORP has a total of 73 patent applications. Its first patent ever was published in 1923. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets basic materials chemistry, chemical engineering and organic fine chemistry are GYRO PROCESS CO, BEIJING CATECH TECH CO LTD and IVANHOE HTL PETROLEUM LTD.

Patent filings in countries

World map showing GRAY PROCESSES CORPs patent filings in countries
# Country Total Patents
#1 United States 54
#2 Canada 6
#3 France 5
#4 United Kingdom 4
#5 Austria 2
#6 Germany 2

Patent filings per year

Chart showing GRAY PROCESSES CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Gray Thomas T 22
#2 Mandelbaum Malvin R 7
#3 Nisson Philip S 3
#4 Cooke Horace B 3
#5 Pelzer Harry L 2
#6 Johansen Ernst M 2
#7 Mcd Gray Alanson 2
#8 Dickinson Edwin A 2
#9 Brooks Benjamin T 2
#10 Herthel Eugene C 2

Latest patents

Publication Filing date Title
US2370713A Revivifying catalytic material
US2312020A Treatment of hydrocarbon oils
GB531033A Improvements in or relating to the treatment of hydrocarbon vapors
US2216691A Treatment of hydrocarbon oil
US2170180A Vapor phase filtering process for the treatment of hydrocarbon vapors
US2172436A Hydrocarbon treatment
US2188075A Treatment of hydrocarbon distillates
US2042448A Treatment of cracked hydrocarbon distillates
US2034575A Refining of fixed gases
US2123194A Treatment of hydrocarbon oil
GB418472A Refining liquid products of destructive distillation of coal
US2100011A Recovery and purification of hydrocarbon oil
US2044421A Removing gum-forming constituents from fuel gas
US2013083A Process of producing a colorless doctor sweet gasoline
US2016342A Process of sweetening petroleum oil
US1952751A Method of degumming hydrocarbons
US1950140A Refining hydrocarbons
US1965105A Refining hydrocarbons
US1865474A Refining hydrocarbons
US1901158A Refining hydrocarbons